add a factorial test

[sicp.git] / src / sicp / metacircular2-test.rkt

diff --git a/src/sicp/metacircular2-test.rkt b/src/sicp/metacircular2-test.rkt
index 91ea502fd664082146a675ac884d82f63c9e66ff..1644f95a9ac1aee0b8a548f614eeb0894f5d0c72 100644 (file)
--- a/src/sicp/metacircular2-test.rkt
+++ b/src/sicp/metacircular2-test.rkt
@@ -71,7 +71,13 @@
                     b
                     (fib-iter (+ a b) a (- count 1)))))
            env1)
-     (check-equal? (eval '(fib 10) env1) 55 "named let"))))
+     (check-equal? (eval '(fib 10) env1) 55 "named let")
+     (eval '(define (factorial n)
+              (if (= n 1)
+                  1
+                  (* (factorial (- n 1)) n)))
+           env1)
+     (check-equal? (eval '(factorial 10) env1) 3628800 "factorial test"))))
 
 
 (run-tests metacircular2-tests)
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